Jointer and colter block



E ALLEN Jdinter and Golter Block.-

N0. 2 23,s31.= Pate Med Jan. 27, I880.

INVENITUR \Hilllllll? ATIORNEYS,

NJETERS. PHOTO-LITHOGRAPHER WASHINGTON. D. C.

' UNITED STATES PATENT OFFICE.

ETHAN ALLEN, OI KALAMAZOO, MICHIGAN.

JOINTER AND COLTER BLOCK.

SPECIFICATION forming part of I etters Patent No. 223,831, dated January 27, 1880.

Application filed June 19, 1879.

To all whom it may concern Be it known that L'ETHAN ALLEN, of Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented certain new and useful Improvements in Jointer and Golter Blocks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of referencemarked thereon, which form a part of this specification.

My invention relates to colter and jointer blocks, and is designed to provide improved means for adjusting the colter or jointer toa ward or from the land.

Referring to the drawings, Figure l is a.

view, in side elevation, of a plow provided with the improvement. Fi g. 2 is a detail transverse sectional view of the block and plowbeam. Fig. 3is a plan view of the same, with the upper horizontal flange of the block broken away. Fig. at is a perspective view of the block alone.

The plow herein shown is merely by way of illustration, and the colter and jointer block A is applicable to any plow. The plow-beam is preferably made with the two transverse bolt-holes a, through which pass the bolts B in securing the block thereto. This block is provided with the horizontal slots I), respect iyely, in its two longitudinal side portions, and in which said bolts work, as the block has angular adjustment in a horizontal plane relative to the plow-beam. The object and function of these bolts is twofold-to make the desired adjustment of the block and to secure the latterfirmly to the plow-beam. Said bolts are therefore fastenings, which enable the block to resist strain imposed thereon in the direct line of draft, and they are, in addition, adjusters in moving and maintaining the block in desired position. To provide a pivotal rolling bearing for the block in this movement, a horizontally-projecting flange, c, is formed in vertical line between said block and the plow-beam side.

The flangemay be formed on the plowbeam, or on an independent plate secured to the latter, so that its free edge may bear against the block. It need not necessarily be vertical. It can be horizontal, semicircular, or of other desired form. So, also, there may be two or more of them, instead of one. Preferably, however, I make the hearing, as shown in the drawings, formed on the vertical central portion of the inner face of the block, this latter construction being better, in that it strengthens said block and especially enables it to resist the strain imposed thereon, as the bolts maintain it in different positions, and it is subjected to work. If desired, a groove corresponding to the bearingedge of this flange may be formed either on the plow-beam or on the block, as the case may be, in order to make a more firm bearing between said block and plow-beam.

The remaining parts of the blockmay be made as desired. The upper horizontal arm, 0, of the block, through which the main bolt D of the plow passes, may be omitted. A lower arm, similar to this upper one, may be employed to secure the lower portion of the block to the under side of the plow-beam, or other mechanical changes he made; bntpreferably I use the form of construction herein shown as regards all the parts.

Washers or plates may be used on the adj usting-bolts, which will permit the plow-beam to engage with the rolling bearing or projecting flange in adapting the block to plow-beams of different widths,

By loosening the main bolt of the plow, then loosening the forward adj usting-bolt of the block and tightening the rear adjusting-bolt, said block will be moved so as to throw the colter or jointer in toward the land, while, if the rear bolt is loosened and the forward bolt is tightened, the colter or jointer is throw from the land.

When the proper adjustment is made, screw up the two adjusting-bolts firmly, and the Then, by screwin land,as required, bringing them in line with the land-side of the plow when the beam is i changed from the working of two to three horses, or the reverse.

The slot in the upper horizontal arm of the block, which secures the same to the plow-beam, should be of size which will-permit the pivotal rolling movement of the blockl 2. The combination, with a jointer and colter block having a vertical flange on its rear central portion, and having transverse hori zontal slots on opposite sides of said flange, 20

of a plow-beam ha\-*ing holes which register with the slots and bolts which work in said slots and holes,.substa1'1tially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 26th day of 25 May, 1879.

ETHAN ALLEN.

Witnesses ALFRED B. F. PALMER, GEO. DODGE. 

